/Engine/Source/Runtime/Engine/Public/Net/OnlineEngineInterface.h
Voice
any ready generated voice packet for a given local user
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FVoicePacket](API\Runtime\Engine\Net\FVoicePacket) > GetLocalPacket ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, uint8 LocalUserNum )